Spindle mounting for textile spinning or like machines



Nov. 3,1953

WEsTALL SPINDLE MOUNTING FOR TEXTILE SPINNING 0R LIKE MACHINES FiledJune 21, 1951 Patented Nov. 3, 1953 SPINDLE MOUNTING F OR TEXTILE SPINNING OR LIKE MACHINES Arthur '1. M. M. England Application June Claimspriority,

Westall, Accringt Research) on, England, assignor to Limited,Rossendale,

21, 1951, Serial No. 232,817 application Great Britain May 25, 1950 4Claims. (Cl. 57-135) This invention is concerned with the mounting ofspindles of textile spinning, doubling and twisting machines, suchspindle mounting being of the type wherein the spindle bolster isresiliently borne in thespindle rail, carrier bracket or the like, so asto be capable of a controlled oscillatory or gyratory movement inrelation thereto. Examples of such known type of spindle mounting aredisclosed by British Patent Specification No. 329,485 and United Statespatent specification No. 2,486,730, in which springs are compressed bothabove and below a spindle rail, respectively between the upper side ofsaid rail and a shoulder on the bolster, and between the underside ofsaid rail and a nut screwing upon the part of the bolster whichprotrudes downwardly through the spindle rail.

This invention has for its object to provide an improved form of pindlemounting of the aforesaid type, which will enable a spindle to be drivenat speeds higher than is customary without developing undue vibrationdue to the dynamic unbalance of the yarn package or to faulty design ormanufacture of the spindle itself. For this purpose a spindle issupported in the spindle rail, carrier bracket or the like by twoopposed springs one of which is compressed between the underside of saidrail, bracket or the like and an adjustable abutment on the downwardlyprotruding part of the spindle bolster, whilst the other spring iscompressed between a shoulder or other fixed abutment on the upper partof the bolster and a collar which is slidable on the bolster and isarranged to transmit the force of said upper spring equally to aresilient annular packing housed in the spindle rail, carrier bracket orthe like and a second adjustable abutment on the bolster.

Said second-mentioned abutment on the bolster may be constituted by anut screwed thereon, and in a modification a third spring may beintroduced between the opposed faces of said collar and said abutment.

Two embodiments of the invention are hereinafter described withreference to the accompanying drawings, in which Fig. 1 is a verticalsection of a spindle assembly for that kind of textile spinning machinewhich is known as an uptwister. Fig. 2 is a similar view to Fig. 1 of amodification.

In Fig. 1 the reference numera1 l indicates the spindle-supportingmember which is mounted pivotally by means of a pin l I in the bracketl2, which latter is adapted to be fixed to the machine framing inconventional manner. Said member I!) is apertured at It to receive thebolster H of the spindle assembly. (Said assembly includes an innerbearing tube l5 supporting the spindle blade It by a journal bearing l1and a footstep bearing bobbin support is which is carried on the bladel5 so that the wharve coincides substantially with the bearing 11.)

The spindle assembly issupported upon the member 10 by means of twoopposed springs 20, 2| which are arranged co-axially with the bolster,respectively embracing the latter above and below the member It. Thespring 2!] is compressed between a shoulder 22 on the upper part of thebolster I l and a collar 23 which is free to slide on the bolster andthe underside of which is of suflicient breadth to enable it to beardownwardly equally upon a resilient packing ring 24 which is located ina recess in the upper side of the member ID, and a nut 25 which isthreaded on the bolster. A locknut 26 is provided for securing the nut25 in position. The spring 2| is compressed between the underside of themember l0 and a nut 21 threaded on the shank of the bolster I4. 28 is alocknut for said nut 21.

The aperture l3 in the member In is of sufiicient diameter to provideample clearance within it for the nuts 25 and 26, and the arrangement issuch that when the spindle is stationary the assembly will take up acentral position in said aperture I3.

In an alternative embodiment (not shown) the spring 2| may seat at itsupper end against a resilient packing ring located in a recess in theunderside of the member I0. A collar such as that indicated at 23 mayalso be interposed between the spring and the packing ring.

In the modified embodiment shown in Fig. 2, additional flexibility isachieved by introducing a third spring 30 between the under-face of thecollar 23 and the nut 25.

The position of the bolster when the spindle is stationary depends uponthe relative stiffness and the relative compression of the springs 20,2!, which latter condition may be varied by adjusting the settings ofthe nuts 25 and 21 on the bolster. If desired one spring may besubjected to a greater degree of compression than the other.

The arrangement in both the aforedescribed embodiments of the inventionis such that both radial and axial movements of the spindle assembly areaccommodated by the flexibility of the opposed springs. The opposedarrangement of the springs is efiective to absorb vibrations l8, and acombined wharve and which would otherwise be transmitted from thespindle through the bolster to the supporting member ID.

What I claim as my invention and desire to secure by Letters Patent is:

1. A spindle mounting comprising, in combination, a carrier having anopening therein, a spindle supporting bolster disposed to extendsubstantially vertically through said opening and out of contact withsaid carrier, and means for resiliently supporting the bolster from thecarrier comprising an abutment adjustably secured on a downwardlyprotruding portion of the bolster, a first spring compressed between theunderside of the carrier and said abutment, a fixed abutment on theupper part of the bolsterabove the carrier, a collar surrounding thebolster and. movable longitudinally thereof, a resilient angular packingsupported in the carrier and having an upper face exposed to the collar,a second adjustable abutment onthe bolster, and a second compressedspring opposed to the first and bearing at its upper end against thefixed abutment on the bolster and at its lower end upon said collar, thecollar being disposed to bear both upon the annular packing and upon thesecond adjustable abutment on the bolster.

2. A spindle mounting as claimed in claim 1, comprising a third springintroduced between said collar and the abutment against which saidcollar is arranged to bear.

3. A spindle mounting as claimed in claim 1 wherein at least one of theadjustable abutments is constituted by a nut threaded on the bolster,and comprising means for locking said nut in any desired setting.

4. A spindle mounting as claimed in claim 1, whereinv a third spring isincluded between the collar and the second adjustable abutment, thesprings being of different stiffness, and the adjustable abutmentsserving through their adjustments to vary the compression of the springsrelative to one another.

ARTHUR WESTALL.

References Cited in the file of this patent UNITED STATES PATENTS NumberName Date 791,436 Browne May 30, 1905 2,486,730 Berg Nov. 1, 1949FOREIGN PATENTS Number Country Date 521,197 Germany Mar. 19, 1931326,298 Italy Mar. 21, 1934 401,714 Italy Jan. 29, 1,943

